You do realize that you are actually helping my side of the argument with those facts. I have been saying that Arab, Persian, and Northwest Indian groups have been present on Somalia's South coast for hundreds of years and have been trading enslaved Southeast Africans while they were there.
"Initially exporting raw materials such as ivory, ambergris, dark woods, and incense, the coastal towns began producing and exporting cloth by the fourteenth century when Ibn Battuta recorded impressions of his visit. Evidence from Portuguese travelers from the sixteenth and seventeenth century indicates that urban families used slaves in the textile industry, and probably also in domestic service. These slaves were most likely Abyssinian as European visitors in the mid-ninteenth century noted the trade in Abyssinian slaves from Harar."
Catherine Besteman, Unraveling Somalia, pages 49-50.
"The production of items like durra, sesame, orchella, and cotton in quantities sufficient to meet the needs of the local market and, to an increasing extent, those of the foreign, was made possible by the importation in the Banaadir of a new supply of agricultural labor: black slaves from the Swahili coast to the south. Limited slave trading almost certainly had been going on for several centuries and consisted chiefly of the export, on a small scale of Oromo captives to the Middle East.The heyday of the import trade, however, appears to be linked with the emergence of Zanzibar as a commercial power in East Africa. The earliest dates that can be isolated with any certainty fall around 1800, when Zigua slaves from the Mrima coast were brought to the Bajuni islands and perhaps Baraawe. By the 1830s and 1840s, slaves were being carried in Arab dhows to the Somalilands in increasing numbers: six hundred landed at Muqdisho in 1846."
Lee V. Cassanelli, The Shaping of Somali Society, pages, 168-169
It is clear from Cassanelli and others that the Ajuraan exploited local populations and did not import slaves. The Gosha and Mushunguli began arriving only after 1800 and large numbers only began arriving at mid century. The claim the Somali Bantu all arrived in Somalia as slaves is bogus.
